Side tack puller



Jan. 14, 1930. 1.. a. FREEMAN SIDE TACK FULLER Filed May 4, 1929 dumm,

Patented Jan. 14, 1930 UNITED STATES PATET- OFFICE LOUIS G. FREEMAN, F CINCINNATI, OHIO, ASSIGNOR TO THE LOUIS G. FREEMAN COM- IANY, 0F CINCINNATI, OHIO, A CORPORATION OF OHIO SIDE TACK PULLER Application filed May 4, 1929.

My present invention is an improved tack pulling machine for use in operating upon boots and shoes during their construction, and more particularly relates to a machine of the type disclosed and described in my co-pending application, Serial No. 661,450, filed September 7th, 1923, of which the present application is a continuation in part.

A feature of the present invention consists in the provision of a large reservoir of oil and means to supply the same to the driving shaft, moving parts and fork carrying bar. As such tack removing machines usually depend upon a reciprocating and i5 oscillating bar, it is practically impossible to provide a fixed and oil-tight bearing through which the bar runs, owing to the oscillatory path of movement requisite for the tack removing fork. I have, in the present machine, overcome this difficulty, and have provided means which will supply a large amount of oil to the moving parts, and yet will prevent the same from being thrown out along the line of the oscillating tack fork carrying bar and damaging the shoe. Preferably I employ a plurality of oil retaining means for this purpose, which will yet permit free movementof the oscillating bar, as explained. The provision of a substantial oil supply in a machine of this kind. is a distinct novelty and I wish to claim the same broadly. Other importantadvan tages, details and novel combinations of parts will be hereinafter more fully'pointed 3 out and claimed. I

In the accompanying drawings illustrating the preferred embodiment of my inven tion:--- 7 Fig. 1 is a side elevation of the upper portion of the machine;

Fig. 2 is a fragmentary, vertical, sectional elevation on the line 22 of Fig.1; I

' Fig. 3 is a similar view illustrating a modified form of the invention;

Fig. 4 is another similar view disclosing a different modification; and

Fig. 5 is a fragmentary elevation in section showing a variation of the invention.

Referring to the drawings, 10 designates 59 a base or pedestal in the lower part of which Serial No. 360,539.

is rotatably mounted a shaft carrying a driving pulley (not shown), the shaft being driven from any suitable source of power. Formed integral with the base 10, or secured thereto in any suitablemanner and extending upwardly therefrom to any convenient height is a head 13, this head being hollow and; having a portion 14 thereof extending upward and laterally with respect to the base or pedestal 10. Intermediate the ends of the vertical portion of the head 13 is a partition 15 which forms the bottom of an oil chamber'or reservoir 16 containing a body of oil or other lubricating fluid 17. Mounted on the side wall of the head. 13 is a crank shaft 22 to which is. affixed a pulley 23 having a belt groove 24, and passing over the pulley 23 and the driving'pulley (not shown), is a driving belt 25 by means of which rotary motion is imparted to the crank shaft 22. Secured to the crank shaft, 22 is a balance 27. Guideways are formed in the interior of the head portion 14 in which is slidably mounted a puller bar 32 the rear end of which is connected to an eccentric crank pin'36'on the end of crank shaft 22. This puller; bar. is guided in its movement by a pivot bar 42, and a pivot bar link 43, as shownv in Fig. 1.' i

As the crank shaft 22 rotates, the splash pin 44 which is conveniently and adjustably mounted on the puller bar 32, or upon any othersuitable moving part of the mechanism within the hollow portion 14, splashes a portion of the oil 17 out of the reservoir 16 and forward toward the front of the head-14, thus lubricating thepuller bar 32 and the bearings in which the same slides, as well as lubricate ing the pivot points of the pivot bar link 43.

Lubrication almost to the point of excess is necessary, due to the great speed-at which the crankshaft 22 revolves, and therefore'no matter how tight the bearings may be, some oil will work through and there is, therefore,

danger that the oil will fly out onto the shoes from which the tacks are being removed. To

obviate this danger, Ihave provided a partition wall shown at 46, which I have found an efficient means for preventing leakage of oil out through the front of the head portion 14.

As a further safeguard to prevent any oil that may work out on bar 32especially the top and bottom faces thereof-from flying off and soiling the shoe being worked on, I place a guard 71' on the puller bar 32 at a point just outside the opening in the head through which the puller bar 32 passes- I The front end of the puller bar is provided with, a side wing 63separated fromthemain portion by a heel which'acts to protectthe upper of a shoe being worked upon' from damage by the tack fork travelling in its orbit. At the side of the scuffing guard 62 there is an extended side 64 having the dual function of holding down the upper next tothe tack when pulling tacks that are driven deep, while enabling the operator to bring the shoe into operative position with respect to the tack fork. quickly and without risk of the rnoe slipping from its position and beconr' damaged.

The operation of my improved device is as follows, it being assumed that such device is constructed and assembled in the manner above described. The reservoir 16 being filled with oil 17; to the desired depth so as to allow the splash pin 44 to dip into the same and splash oil,,the tack fork 48 and the scuffing guard 62 being adjusted to operate to remove tacks from the shoes, power is thrown onto the main shaft which, through the belt 25, imparts rotary motion to the crank shaft 22 and the crank 36 thereon will cause a reciprocatory motion of the puller bar 32. 'The .reciprocatory motion imparted to the puller bar 32 is modified by meansof-the pivot bar link 43 and the forward end of the puller bar is forced to describe an orbital pat'h. The tack pulling operation is performedin the usual manner,.the operatorpassing the shoe on the last transversely'ofthe line of travel of the tack puller 48, and the rapidly movlng tack fork engaging;with the tacks pulls them out of the shoe; The side win 63 7 prevents injury to the-shoe by the tack ork and the extended side 64 holds down the upper next to thetack, when pulling tacks, and

enables the operator to bring theshoe into operative position without risk .of slipping from position and damaging'fthefshoe, while the heel of the guard holds theupper down on the last while the tacks arebeing pulled.

The scuffing guard as a whole prevents scuffing of theshoe'uppers by the tackfork 48. The partition wall 46 prevents oilworking out of the head" 14 and flying onto the shoe.

The oil supply is preferably sufli'cient to last an entire month thus insuring the con-' tinned efiiciency of the machine without stopping for oiling or endangering the machine through careless operators who neglect to oil all moving parts when needed.

The construction illustrated in Figs. 1 and 2 describes particularly the use of a splash pin adj ustably engaging someone of the moving'parts of the tack pulling mechanism, and effective to dip into the oil regardless of its level. Obviously this adjustable pin 44 might be mounted on the counter-balance 27, or for that matter the puller bar or counterbalance or other moving parts might themielvles dip into the oil if the level is sufficiently The splashing may readily be accomplished, however, by various constructions and inFig. 3, there is illustrated a splash wheel which is mounted for movement independent of the actuating mechanism on a stub shaft 76, projecting through the head portion 13, a pulley 77 on the outer end of this stub shaft provides a means of driving the paddle wheel 75 from the main driving shaftfor the machine. The paddle wheel 75 can be i made of any shape desirable, and can extend Furthermore, it may bedriven in either direction by using either a straight or cross belt connection to the main driving shaft, and by changing the size of the pulley any desired speed orR. P. M. of the wheel may be obtained. v l i In F ig. .4 a variationof the structure shown in ig. 3 is illustrated, and in which-the paddle wheel 75 has itsbuckets 7 8..transversely extended toward the puller bar. Obviously,

oil will be lifted by the buckets .78 as they dip into the oil, to be thrown or'dropped upon the puller bar and associated mechanism the Wheel rotates.

Fig. 5 also shows a form of lubricator in which the operating mechanism is entirely independent of the actuating mechanism ofthe tack pulling'machine. In this figure is disclosedan oil pump 79 driven'by a pulley 80 to force air through a nozzle .81, which nozzle is directed against-the actuating mechanism. Air in being forced up through the pipe draws oil from the reservoir-and sprays or splashes same on the actuating mechanism of. the tack puller. V 7 WVhile I have necessarily shown and-described the preferred embodiment of lmy in- .vention, somewhat in'detail it is to be understood that I may vary-the size,shape andiar- The large oil supply insures the running of 'rangement of parts comprising the invention the machine, and permits greatlyincreased,

speed'of operation, with perfect safety and efficiency, and yet-while supplying for this.

purpose a largevolume of"oi l,"protects;and

guards the shoe from damage by escape of oil.

Having thus described my invention, What I claim as new and desire to secure by Letters Patent of the United States, is

l. A tack pulling machine having in combination, tack pulling means and actuating mechanism therefor, a casing forming an oil reservoir, and enclosing said mechanism, means to splash oil over said actuating mecnanism during operation thereof, thereby to bathe the same in oil, and means to prevent the oil thus splashed from reaching the work.

2. A tack pulling machine having in combination, tack pulling means and actuating mechanism therefor, a casing forming an oil reservoir and enclosing said mechanism, means in said casing to splash oil Within the casing, thereby to bathe the actuating machanism in oil, said machine being constructed and arranged to prevent the oil splashed over the actuating mechanism from reaching the Work.

3. A tack pulling machine having in combination tack pulling means and actuating mechanism therefor, including a puller bar, Work guarding means adjacent a portion of the path of movement of said tack pulling means, a casing forming an oil reservoir and enclosing said actuating means, said puller bar being reciprocable in said casing, means adjacent the puller bar to splash oil over said mechanism thereby to bathe the same in oil, and means to prevent the oil thus splashed from reaching the Work and Work guarding means.

4. A tack pulling machine having in combination, a tack pulling'means and actuating mechanism therefor, a'casing forming an oil reservoir and enclosing said actuating mechanism, and means to splash oil over said actuating mechanism thereby to bathe the same in oil, said casing having a partition Wall to prevent oil from escaping to the Work.

5. A tack pulling machine having in combination tack pulling means and actuating mechanism therefor, including a puller bar, a casing forming an oil reservoir and enclosing the major portion of said bar, said puller bar being movable in said casing, and means to splash oil Within the casing thereby to bathe the puller bar and associated mechanism in oil, and a guard on the puller bar to prevent oil from creeping along the bar to the Work.

6. A tack pulling machine having in combination, tack pulling means and actuating mechanism therefor, a casing forming an oil reservoir, and enclosing said mechanism, a driven member independent of said actuating mechanism effective to splash oil over said actuating mechanism during operation thereof, thereby to bathe the same in oil, and means to prevent the oil thus splashed from reaching the Work.

7. A tack pulling machine having in combination, tack pulling means and actuating mechanism therefor, a casing forming an oil reservoir and enclosing said mechanism, a member driven independently of said actuating mechanism effective to splash oil over said actuating mechanism during operation thereof, thereby to bathe the same in oil, said machine being constructed and arranged to prevent the oil splashed Within the casing from reaching the Work.

8. A tack pulling machine, having in combination tack pulling means and actuating mechanism therefor, a casing forming an oil reservoir, and enclosing said mechanism, a splash Wheel independent of said actuating mechanism effective to splash oil over said actuating mechanism during operation thereof, thereby to bathe the same in oil, and means to prevent the oil thus splashed from reaching the Work, and means todrive said actuating mechanism and said splash Wheel from a common source of power.

9. A tack pulling machine having in combination, tack pulling means and actuating mechanism therefor, a casing forming an oil reservoir and enclosing said mechanism, a splash Wheel independent of said actuating mechanism effective to splash oil over said actuating mechanism during operation thereof thereby to bathe the same in oil, said machine being constructed and arranged to prevent the oil splashed Within the casing from reaching the Work, and means to drive said actuating mechanism and said splash Wheel from a common source of power;

In testimony whereof I hereunto affix my signature.

LOUIS G. FREEMAN, 

